SLUSAE1F
December 2010 – December 2018
TPS51916
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Simplified Application
4
Revision History
5
Pin Configuration and Functions
Pin Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
VDDQ Switch Mode Power Supply Control
7.3.2
VREF and REFIN, VDDQ Output Voltage
7.3.3
Soft-Start and Powergood
7.3.4
Power State Control
7.3.5
Discharge Control
7.3.6
VTT and VTTREF
7.3.7
VDDQ Overvoltage and Undervoltage Protection
7.3.8
VDDQ Out-of-Bound Operation
7.3.9
VDDQ Overcurrent Protection
7.3.10
VTT Overcurrent Protection
7.3.11
V5IN Undervoltage Lockout Protection
7.3.12
Thermal Shutdown
7.4
Device Functional Modes
7.4.1
MODE Pin Configuration
7.4.2
D-CAP™ Mode
7.5
D-CAP2™ Mode Operation
8
Application and Implementation
8.1
Application Information
8.1.1
DDR3, D-CAP™ 400-kHz Application with Tracking Discharge
8.1.1.1
Design Requirements
8.1.1.2
Detailed Design Procedure
8.1.1.2.1
1. Determine the value of R1 AND R2
8.1.1.2.2
2. Choose the inductor
8.1.1.2.3
3. Choose the OCL setting resistance, RTRIP
8.1.1.2.4
Choose the output capacitors
8.1.1.3
Application Curves
8.1.2
DDR3, DCAP-2 500-kHz Application, with Tracking Discharge
8.1.2.1
Design Requirements
8.1.2.2
Detailed Design Procedure
8.1.2.2.1
Select Mode and Switching Frequency
8.1.2.2.2
Determine output capacitance
8.1.2.3
Application Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
Device and Documentation Support
11.1
Receiving Notification of Documentation Updates
11.2
Community Resources
11.3
Trademarks
11.4
Electrostatic Discharge Caution
11.5
Glossary
12
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
RUK|20
MPQF220D
Thermal pad, mechanical data (Package|Pins)
RUK|20
QFND191D
Orderable Information
slusae1f_oa
6
Specifications